Francis holt



(No Model.)

P. HOLT..

PIPE OONNEOTION.

Patented Dec. 27,1881.

INVBNTOR:

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, WITNESSES ATTORNEY UNITED STATES PATENT EEICE.

FRANCIS HOLT, OF DERBY, ENGLAND.

PIPE-CONNECTION.

SPECIFICATION forming part of Letters Patent No. 251,441, dated December 2*?, 1881. Application filed August 6, 1881. (No model.) Patented in England June 11,1878.

To all whom it may concern Be it known that I, FRANCIS BOLT, of Derby, England, engineer, have invented a new and useful water, steam, and air pipe con-l nection between locomotive-engines and tenders or carriages, (for which I have obtained a patentin Great Britain, No. 2,322, bearing date June ll, l 878,) of which the following is a specication.

My invention relates to pipe-connections for locomotives and for other purposes; and it consists in the construction and combination of parts hereinafter set forth.

In order that my invention may be readily understood, I Will proceed to describe the aecompanyin g drawings, reference being had to the gures and letters marked thereon.

n Sheet 1, Figurel is an elevation of part of a locomotive steam-engine, with its tender, to which my improvements are applied; and Fig. 2 is a plan ofthe same in section.

a, is the front plate of the fire-box of the engine, to which is fixed the valve-box Z1, connected by the pipe cto the elbow-bracket d, to

which one end of the brass, steel, or other metal tube e is attached. The other end of this tube passes through the packed gland of an ordinary stufng-box,f, Xed to the tender, and this stuitn g-box, which is shown on an enlarged scale in Fig. 2, is connected by the pipe g to the usual vacuum-brake ejector, h, which is placed at the end of the tender nea-r the carriages. Y

rlhe tube e must be of such a length as will give the flexibilty required in passing' through curves ofa minimum radius, and the stuffing box must be sufiiciently long to allow for the telescopic motion of theptube when the engine and tender are shunting or in a collision. This tube c and the stnfngfboxf, in which one end works, are to be used in lieu of the ordinary ball-and-socket pipes, or hose-pipes, or metal coils now in general use for conveying steam from the engine to the vacuum-brake ejector on the tender, the tube e giving absolute security for Workin g the ejector.

kIn Fig. 1 l have also shown how my improvements are applied to working the brakes by a steam-cylinderon thetender: Thetubez'isconnected at one end to the boiler ot' the locomotive-engine, and theother end passes through the gland ot the stutling-boxj, (shown also in Fig. 3,) which is in communication with the steam-cylinder t', which is connected to an ordinary apparatus for applying the brakes to the wheels of the tender or carriages.

What I claim as my invention, and desire to secure by Letters Patent of theUnited States, ls- I In combination with the boiler and tender of a locomotive steam-engine, the valve-box b, pipe c, elbow-bracket d, metalptube c, and stuffing boxf, substantially as set forth.

FRANCIS H OLT.

Witnesses: Guns. A. BAELOW, HERBERT R. ABBEY. 

